Info that is fabulous thing to get from bottle! (5)
I believe the answer is:
genie
'fabulous thing to get from bottle' is the definition.
(genies are fabulous or imaginary beings)
'info that is' is the wordplay.
'info' becomes 'gen' (informal term for information).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'gen'+'ie'='GENIE'
(Other definitions for genie that I've seen before include "Arabian sprite" , "Arabian spirit as in Aladdin's lamp" , "Bottled spirit?" , "Arabian goblin with strange powers" , "Magical servant" .)